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 ###Instrução: Quantos 180s as pernas ganharam de 45?
 ###Tabelas: CREATE TABLE statistics (statistics_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Played INT, Legs Won INT, Legs Lost INT, LWAT INT, 100+ INT, 140+ INT, 180s INT, High Checkout INT, 3-dart Average VARCHAR) CREATE TABLE construction (construction_id AUTO_INCREMENT PRIMARY KEY, 1946 Nos VARCHAR, 1947 Nos VARCHAR, Date INT, Built at VARCHAR, LMS Nos VARCHAR, BR Nos VARCHAR) CREATE TABLE first_round (first_round_id AUTO_INCREMENT PRIMARY KEY, Team 1 VARCHAR, Agg. VARCHAR, Team 2 VARCHAR, 1st leg VARCHAR, 2nd leg VARCHAR) CREATE TABLE manufacturer's_worldwide_ranking (manufacturer's_worldwide_ranking_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Company Name VARCHAR, 2008 Rank VARCHAR, 2009 Revenue VARCHAR, North American Brands VARCHAR, World Headquarters VARCHAR, Country VARCHAR) CREATE TABLE conference_tournament_championships (conference_tournament_championships_id AUTO_INCREMENT PRIMARY KEY, Tournament INT, Conference VARCHAR, Championship Game Opponent VARCHAR, Score VARCHAR, Location VARCHAR, Head Coach VARCHAR)  
SELECT MAX 180s FROM statistics WHERE Legs Won = 45